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Old 06-12-2007, 12:22 PM   #1
MUZZY 77
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Default have you shot your bow through a chronograph?

I have a switchback xt 60lbs 28in. draw my total arrow weight is around 340 grains. I shot it threw the graph and it shot 255. Does this sound about right? Was a lil disapointed, I understand that IBO is 70 lbs and 30in so I wasnt expecting 315 but thought maybe 280. No Mathews hating PLEASE.
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Old 06-12-2007, 01:03 PM   #2
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Quote:
Originally Posted by MUZZY 77 View Post
I have a switchback xt 60lbs 28in. draw my total arrow weight is around 340 grains. I shot it threw the graph and it shot 255. Does this sound about right? Was a lil disapointed, I understand that IBO is 70 lbs and 30in so I wasnt expecting 315 but thought maybe 280. No Mathews hating PLEASE.

255 sounds a bit low but then again:

+40 grains on the arrow (- 5 fps)
- 10 pound draw (-5 fps)
- 2 inches draw weight (- 20 fps)
+ whatever is on your string (- 15 fps)

I would think you should be in the 270's at least
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Old 06-12-2007, 03:47 PM   #3
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Here are some speeds of my setup I have had:

HCA Carbon 4Runner Pro (29" draw) @ 68 lbs- 358 grains = 270 FPS
Bowtech Allegiance (28.5" draw) @ 70 lbs- 373 grains = 294 FPS
Bowtech Allegiance (28.5" draw) @ 70 lbs- 363 grains = 302 FPS
Newberry Sabre (29" draw) @ 70 lbs- 363 grains = 294 FPS
Ross 334 (28.5" draw) @ 71 lbs- 363 grains = 272 FPS
Ross 337 (28.5" draw) @ 63 lbs- 326 grains = 270 FPS
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New Breed Archery-Genetix 28.5"/ 60lbs & 365gr. = 285 FPS
New Breed Archery- Eclipse 65/28.5" & 370gr. = 291 FPS
Bowtech- 82nd Airborne 28.5"/ 60lbs. & 325gr. = 327 FPS
Strother Archery- SR-71 28.5"/65lbs. & 370gr. = 303 FPS
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Old 06-12-2007, 04:46 PM   #4
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Quote:
Originally Posted by MUZZY 77 View Post
I have a switchback xt 60lbs 28in. draw my total arrow weight is around 340 grains. I shot it threw the graph and it shot 255. Does this sound about right? Was a lil disapointed, I understand that IBO is 70 lbs and 30in so I wasnt expecting 315 but thought maybe 280. No Mathews hating PLEASE.
Since you already told us not to do any Mathews hating... you took all the fun out this thread!

It does seem low... I know someone that has a SB XT at 65#, 27" DL and 380 grn arrows shooting 265. Nothing on the strings, stock strings and bow.

I would recheck your equipment and try a different Chrono to see what happens.

lets us know what the outcome is.
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Old 06-12-2007, 09:27 PM   #5
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Quote:
Originally Posted by Dredly View Post
255 sounds a bit low but then again:

+40 grains on the arrow (- 5 fps)
- 10 pound draw (-5 fps)
- 2 inches draw weight (- 20 fps)
+ whatever is on your string (- 15 fps)

I would think you should be in the 270's at least
Isnt that -10 lb draw=(-20 fps) ?
+40 grains on the arrow=( -8 fps)
For every 1lb you change on your bow = 2 fps
For every 5 gr on arrow wt = 1 fps
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Old 06-12-2007, 11:05 PM   #6
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Yep. That's a Mathews. Once upon a time they were cutting edge fast. Now, oh well..... I don't hate them. I just don't want one.
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Old 06-13-2007, 11:19 AM   #7
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I just got new arrows so we chronoed mine yesterday
My arrows are 270 gr.
DW 48#
DL 25.5"
and I am shooting 233 fps
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Old 06-13-2007, 12:37 PM   #8
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35# 27" draw, 250 gr. arrows = 250 fps
35#, 26.5" draw, 220 gr. arrows = 262 fps
just went to 40# last night on one of my bows, will chrono and let ya know..
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Old 06-13-2007, 04:51 PM   #9
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Shot mine through the chrono before the shop owner shot it.

My setup was this when I shot through it:

29" 72# 80%
390gr arrow
WB rest
Cat whiskers, string loop on the string
Arrow speed 276fps

As long as it hits the mark that is fast enough for me.
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Old 06-13-2007, 05:24 PM   #10
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Quote:
Originally Posted by BowhuntnHoosier View Post
Shot mine through the chrono before the shop owner shot it.

My setup was this when I shot through it:

29" 72# 80%
390gr arrow
WB rest
Cat whiskers, string loop on the string
Arrow speed 276fps

As long as it hits the mark that is fast enough for me.
You know I've got to ask..... what did the shop owner shoot it at?
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Old 06-13-2007, 05:28 PM   #11
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Quote:
Originally Posted by J.A.G. View Post
You know I've got to ask..... what did the shop owner shoot it at?
Not sure probably a freakcurve.
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Old 06-13-2007, 05:34 PM   #12
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Martin ShadowCat~~ 29 3/4" dl~ 352gr Jammer/point @ 57# =282fps
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Switchback xt BYC LOOP- SHOOT NOW56# 385gr 2312 Eclipse 100gr Muzzy 256fps SEPTER RANGER STRINGS, 4th axis,335 jammers @ 61# =285 fps
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Old 06-14-2007, 08:32 AM   #13
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No.

Bowtech Allegiance 72# + Easton Axis 400 29" arrows + 100 grain points = pretty fast

Mathews Ovation 61# + Easton Fatboy 400 29" arrows + 100 grain points = pretty slow


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Old 06-14-2007, 02:02 PM   #14
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Mathews Switchback......perfectly tuned....
27" 64lbs....323gr arrow.....260fps

sounds right to me......
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Old 06-14-2007, 08:01 PM   #15
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poorly tuned 06 alleigance, beman 340's,100gr point, 406 total arrow wt,
=289fps
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Old 06-14-2007, 08:05 PM   #16
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Quote:
Originally Posted by bone collector 9615 View Post
poorly tuned 06 alleigance, beman 340's,100gr point, 406 total arrow wt,
=289fps
whats the draw weight and draw length.....?
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Old 06-14-2007, 08:25 PM   #17
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Quote:
Originally Posted by BOWMAN View Post
whats the draw weight and draw length.....?
sorry meant to add that. draw length is 29.5, wt is 70#. and it has the "speed" mods.
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Old 06-15-2007, 12:54 AM   #18
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I would never try to shoot my bow though a chrono, dont think it would fit. What would you shoot it with anyways? anouther bow?
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Old 06-15-2007, 08:08 AM   #19
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Quote:
Originally Posted by bullspotter View Post
I would never try to shoot my bow though a chrono, dont think it would fit. What would you shoot it with anyways? anouther bow?
That's funny...


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Old 06-15-2007, 09:32 AM   #20
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Quote:
Originally Posted by bone collector 9615 View Post
sorry meant to add that. draw length is 29.5, wt is 70#. and it has the "speed" mods.
Yeap, that thing needs a tune up bad.

I have a Cougar SE Dynacam, 60#, 30" draw, 450 gr Axis arrow total weight and I am getting 250 fps.
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